Globalize accessors on subset of available locales

Question

By design, some classes will deal with only a subset of available languages.

the globalize-accessors gem is quite useful, however, the rendering requires that the following be defined

Class.globalize_attribute_names

so while available_locales = [:en, :ru, :fr, :de], the goal is to work with a smaller array [:en, :ru]

The documentation states Calling globalize_accessors with no options will therefore generate accessor methods for all translated fields and available languages. But the purported way to invoke is in the model

globalize_accessors :locales => [:en, :fr], :attributes => [:title] 

How can the globalize_accessorsmethod refer to an array, something generated by the likes of

@post.owner.ownerlocales.pluck('locale')

(although the array values are quoted...)

Answer 1

A working solution found but that does not address the above question, is based on the fact that globalize-accessors

gives you access to methods: title_pl, title_en, title_pl=, title_en=

Thus, a controller method that generates a whitelist

@locales =  []
@post.owner.ownerlocales.each do |ol|
  locale = ol.locale
  @locales.push(locale)
end

... then process in the view filtering out the globalize_processors from whitelist

<% Post.globalize_attribute_names.each do |lang| %>
  <% my_string = lang.to_s %>
  <% @locales.each do |locale| %>
    <% checkstring = "_" + locale %>
    <% if my_string.include? checkstring %>
      <div class="row">
        <%= t(lang[0..-4]) %> &nbsp;&nbsp;-&nbsp;&nbsp; <%= lang[-2, 2] %> <br />
        <%= f.text_area lang, rows: "3" %>
      </div>
    <% end %>
  <% end %>
<% end %>

Not efficient, functional.